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| Patents for Benjamin King | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,612X | Nov. 15, 1811 | B. King | Mode of welding or uniting scrap iron or steel preparatory to forming it into bars, by the forge hammer and of effecting the same by pit coal in its crude state without the use of coke or charcoal | blacksmith | |
| 2,796X | May 29, 1817 | B. King | Making holes in iron railing and horizontal plates and bars | ||